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Mod | | | Forums66 Topics128,012 Posts1,055,311 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Sep 2013 Posts: 13 New Guy | | New Guy Joined: Sep 2013 Posts: 13 | I am curious about the little lever on my shifter just below the ball. It's where a PTO would be but I don't have one. I've been told it's a reverse lock out or an overdrive. It's a 1938 Chevy TD 1 1/2 ton.
1938 Chevrolet Series TD 1 1/2 Ton
| | | | | Joined: Sep 2006 Posts: 3,596 'Bolter | | 'Bolter Joined: Sep 2006 Posts: 3,596 | Reverse lock-out, the early transmissions prior to the introduction of the SM-420 in 1948 have this feature. PTO levers are usually on the floor somewhere, same with overdrive if equipped. | | | | | Joined: Nov 2010 Posts: 1,159 Shop Shark | | Shop Shark Joined: Nov 2010 Posts: 1,159 | Probably a reverse lock-out. I've seen them on early '40's models,as well. That's where the 2-speed cable attaches,on T.F.,and later trucks. P.T.O. levers,of that era,were usually floor-mounted,due to the linkage used. Cable-actuated units,(dash-mounted), didn't become popular,until the'60's. Try using reverse without using the lever. If it won't engage,then you'll know for sure. | | | | | Joined: Sep 2013 Posts: 13 New Guy | | New Guy Joined: Sep 2013 Posts: 13 |
1938 Chevrolet Series TD 1 1/2 Ton
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